Filter



H. B. FABER El' AL Aug. 18, 1936.

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5 Sheets-Sheet J..

A ORNEY INVENToRs #2f/mr Mae-R FILTER Filed April 14, 1932 Aug.1s,1936.H. BFABERETAL, 2,051,079

FILTER Filed April 14, 1932 3 Sheets-Sheet 2 INVENTORS Aff/ww 5. 535A l'fl/SE Aug. 18, 1936. H. B, FABER ET Al. l 2,051,079

FILTER Filed April 14, 1932 5 Sheets-Sheet 5 ATTORN Patented Aug. 1s,193e UNITED FILTER Application april 14, 1932. serials. scam sgolaims.(ci. 21o-19s) The object of our invention is to provide a illter with arotor moving continuously in an angular .direction and receiving uidmaterial with solids, either hot or cold, and separating the solids fromthel fluid, by iirst exerting a suction through a iilter pad to separateand retain the solids, and later putting pressure on the interior of theiilter pad to force the solids off.

A further object of our invention is to `provide table provision forexpansion and contraction so that large passages may exist for allmatter passin through the lter, except at the 'ilter pad where thepassages through the pad are suiciently small to retain the solids.

These and other objects are accomplished by` ourv invention, oneembodiment of which is hereinafter more particularly set forth.

For a more detailed description of our invention. reference is to be hadto the accompanying drawings, forming a part hereof, in which Figure 1is a longitudinal section of a machine i embodying our invention;

Figure' 2 is a cross section of our improved fil-1V ter taken on theline 2-2 oi Figure l;

Figure 3 is a side elevation of the rotor of the machine with certainparts removed;

Figure-4 is a sectional view taken on the line 4 8 of Figure 1, lookingin the direction oi' the arrows; and Figure 5 is a plan view of a gratewhich is placed underneath a iilter pad.

" Throughout `the 4various views of the drawings, similar referencecharacters designate similar parts. t

Our improved lter l has a xed body 2 and two pedestals 3 at the top ofwhich are bearings for a shaft 4 carrying the rotor 5 of this machine.

The rotor is driven by a lsuitable pulley 8 or any other suitable means,and preferably'at a slow i0 speed, say two or three revolutions aminute. The

2 is mounted on a suitable support l and is provided'with a pipeconnection 6 at its lowest point through which it may be drained. It isalso provided with a cylindrical bearing 9 whidh L5 `carries the rotorin a manner which will be described below.

At its top isa. chamber I0 which-dis provided with a number of spraying"devices il which throw water against spreaders I2 set at. any 0 suitableangle and provided with serrated edges so as to produce curtains ofmoisture I3 which thoroughly wash the atmosphere at the intake i4 at thetop ot the frame. This stationary frame 2,

on its exterior and about the bearings S, carries 5 a number oiears I5in which are pivotally suppassages, or these ported suitable bolts i8with wing nuts I'l and these hold the partioned face plates I8 in rigidconnection with the frame 2. To prevent leakaget a suitable packing i9is employed near the bolts I6 and this packing is held-in place by asuitable 5 packing ring 20,- so as to make a tight joint between theparts I 8 and 2.

Theface plates i8 have a suitable boring through `which the shaftspasses, and each has a spherical seat 2| to engage a correspondingseatl0 2id on the; rotor 5 which will be described below. Each face platehas large passages which register with corespondlng passages in therotor. Atth`e bottom of each face plate i 8 is an inflow opening 22, andat the top an outilow opening 23, and the 15 opening 22 has certainboundary partitions 24 (see Figure 4) which 'form a passage 25 betweenthem.

This passage 25 has ample capacity to permit This lwater is underpressure while the space .beyond the partitions 24 is under a partialvacuum. A suitable hand hold opening 28 is pro:- vided opposite thepassage 25 and this opening is normally covered by a cover 21 heldbysuit- 25 ablebolts 28 in the conventional way.

The rotor 5 is composed oi two identical castan inflow of cleansingwater as will appear below. 2o

ings 29`united bytie bolts 30 which pass through partitions 3| which areradially disposed (see Figure 2) so as to separate the interior of the30 rotor Ainto a number oi' radial compartments, i.-e., the part nearestthe axis, they are the sa'me size as the passages 2 5 and the spaces ofthese gorges, are smaller than the partitions 24-so that only one gorgewill be op- 35 posite a passage 25 at one time. as it would not bedesirable to have suction ,come in contact with pressure.

'I'he partitions 3| have spherical outer ends 2Ia which engage with atight nt the surfaces 40 2| of the faceplates I 8. This is importantbecause the joints between the parts 2l and.3| m'ust betrue and good atall temperatures as well as the joints at the packings i9, and theradial expension which occurs in allparts under temperature iniiuencestakes p la'ce in such a manner that there is no leakage `in thestructure here involved, so that the passages' for the inflow andoutflow for iiuids are ample and not restricted re, gardless of the sizeof the apparatus. 50 Heretofore such mac es have been built with pipesabout the hub of afrotorand these pipes were necessarily restricted infdiameter with the result that the usefulness of the machine as well asits size was seriously impaired. Here, as above The periphery oftherotor i has flanged collars I! recessedto receive grates 33 (see Figure5) and over thesegratesisplacedthelterpad which is held by wires 35,orother suitahle'means, andoneofthesewires.ateachside,restsina groove 30in the collar 32. A

In view of the foregoing, the operation of our improved iilter will bereadily understood.

The iluid with solids to be iiltered out of the iiuid, whether hot orcold, comes in through the pipe connection Il, and suction together withthe spray from the nozzles I I causes the solids to adhere to the pad 34and the iiltered uid passes out through the suction at the large Ports23, leaving the solids adhering to the exterior of the iilter pad, wherethey remain until opposite the passage where there is an inrush of wateror other fluid under pressure, which strikes the interior of the iilterpad Il and` through' thev same so as to expel the solids from the padand permit them-to be washed to the bottom oi' the apparatus and outthrough the outow pipe I.

'Anysurpluswaterthatdoesnotpassthrough the'nirpeduwmesonnditswaytotmssump at the bottm so that itrwill pass out throughthe` passage 8.

The operation, above described, is not quite continuous as to theremoval of the solids from the exterior of the filter pad 3| becausethis removal occurs only when a space between the partitions 3iregisters with a is almost continuous. There is no on or expulsion.

While we have shown and Vdescribed one embodiment of our invention, itis obvious that it is not restricted thereto, but that it is broadenough tov cover al1 structures that come within the scope of theannexed claims. Y

.Having thus described our invention, what we claim is: t

1. A rotor for filtering machines composed of two castings boltedtogether with integrally formed passages and chambers, and sphericalseats at each end.

2.Aiiiterhavingailxedcasing,arotorwith integrally formed chambers andpassages fitting thel'im'uhd. a ball' and stickeir joint between thecasing and rotor, so that and contractions due to temperature changeswill not affect the tightness of the joint between them.

3. A filter comprising a casing. a solid and imperforate shaft rotatablymounted in said casing, a rotor having chambers and mounted on saidshaft, aiilter padassociated with said rotor, a ball and socket jointbetween said casing and rotor so that expansions and contractions` dueto temperature changes will not the tightness of the joint between them,

means for creating a suction in some of said chambers and means forforcing a uid under pressure through another chamberto expel theiiltered matter. Y A j 4. A filter which comprises a iixed casing, a

rotor having chambers and passages therein, a;

ball and socket joint between said casing and rotor so that expansionsandv contractions due to temperature changes will not effect thetightness of the joint between them, a iter pad on the periphery of saidrotor, means for causing vsuc- .tion in some o'f said chambers .Ind

pasagestherein Aradial passages under a diierentiai an outlet chamberextending around the major 65' Aportion of the' said socket to c arryaway' filtered liquid discharging in said passages, 'and an inlet Ameans for forcing a iiuid under pressure through another set of saidchambers and- Y whereby solids may be deposited on a iilter pad and thefiltered iluid removed.

5. A filter comprising a iixedcasing, a substan- 5 tially solid andpractically imperforate shalt ro-l tatably mounted in said casing, arotor having radial chambers and passages therein and rounded endsmounted on said shalt, a illter pad associated with said rotor,concaveseats in said casing adapted to receive the rounded ends of therotor and to form a huid-tight joint therewith, a passage in the casing.adapted to register with at least one of said radial passages in therotor whereby fluid under pressure may be introduced to said registeringpassages to backwash a portion of said iilter pad, and means forcreating a differential of pressure in the other passages and chamberswhereby solids may be deposited on the periphery 'of the rotor aud theilltered iiuid 20,

removed. 6. A filter comprising a casing having cbncave seats, a`substantially imperforate shaft rotatably mounted in said casing, arotor having rounded ends mating with the said seats'mounted 25 on saidshaft, said rotor having radial chambers and passages therein, a illterpad associated with the periphery of said rotor, inlet and outlet portsin said casing adapted to simultaneously register with a plurality oisaid passages for introducing 3 liquid from the casing to the saidchambers and passages and to discharge "filtered liquid there-- from,and a passage located in the casing adapted4 to register'with a singlepassage in the rotor to introduce backwash liquid under pressure to re-35 move solids deposited on said illter pad. 7. A nlter comprising acasing, a' substan-f tially imperforate shaft rotatably mounted in saidcasing, a rotor having chambers and passages therein mounted on saidshaft within said casing,` 40':

e uuid-tight beu and socket joint between said casing and rotor, altering pad mounted around i the periphery of said rotor, a port ofentry and a port of discharge located in the casing adapted i tosimultaneously Aintroduceunder a differential 4,5'-4

or pressure liquid to be mtered inte e plurality or said chambers andpassages and to discharge 111-. tered liquid therefrom through said balland. socket joint, and another port of entry in said casing adapted toregister with the remaining set of said chambers and passages throughsaid ball and socket joint to introduce backwash iluid under pressure towash away and to remove solids which have collected on the illterlpad.

s.' A filter-comprising `a rotor having a plurality 55` of radialpassages, curved seats at each'end of said rotor, a iilter associatedwith the periphery of said rotor, a casing having Vmatingsockets/adapted tc receive said seats and to form a /iiuid tight jointtherewith, a substantially im rforate shaft 50 for said rotor rotatablymounte in said casing, an inlet chamber in said casing/'forsimultaneously introducing uunitered liquid to a part of said.

of. pressure,

port in said casing adapted to register with at least one .of theremaining passages for introducing a back wash iiuid under pressure toremove solids from the lter pad. i

